Creep Meters- a device used for measuring horizontal movement of the ground. Laser-Ranging Devices-a device that uses a beam to detect any tiny movements in the fault. Tiltmeters-a device that measures tilting of the ground. Satilite Monitors-these devices take images of faults.
Outline
Devices that Monitor Faults
To help predict earthquakes,geologists use instruments such as a creep meter,a laser-ranging devices,tiltmeters,and satilites.
Creep Meters
This device uses a wire stretched across a fault for measuring horizontal movement of the ground.
Laser-Ranging Devices
This device uses a laser beam to detect tiny movements along a fault.
Tiltmeters
This device consists of two bulbs ,filled with liquid and connected to a hollow stem to measure tilting of the ground.
Satilite Monitors
This device uses satilites packed with radar to take images of faults.
Monitoring Risk In the United States
To determine earthquake risk geologists have to find faults that are active and where past earthquakes have occured.
Diagram
This diagram shows how a laser-ranging device works.
Table of Contents
2.4 Monitoring Faults
Vocabulary
Creep Meters- a device used for measuring horizontal movement of the ground.Laser-Ranging Devices-a device that uses a beam to detect any tiny movements in the fault.
Tiltmeters-a device that measures tilting of the ground.
Satilite Monitors-these devices take images of faults.
Outline
Devices that Monitor Faults
Monitoring Risk In the United States
Diagram
This diagram shows how a laser-ranging device works.